Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1990CHEVY VAN G20, 6.2 C, 4L60/MD8REPAIR AND DIAGNOSISENGINE PERFORMANCEAPPLICATIONENGINE/VIN IDIDENTIFICATION1990-91 MODEL COVERAGE & IDENTIFICATION
1990 Chevrolet Chevy Van G20, 6.2 C, 4L60/MD8
1990-91 Model Coverage & Identification
1990 Chevrolet Chevy Van G20, 6.2 C, 4L60/MD8SECTION 1990-91 Model Coverage & Identification
BODY, ENGINE, FUEL SYSTEM & IGNITION SYSTEM APPLICATIONS
| Model | Body | Engine (1) | VIN | Fuel System | Ignition | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Astro & Safari | M, L | 4.3L (LB4) | Z | TBI | Magnetic | ||||||||||||
| 4.3L (LU2)(2) | B | TBI | Magnetic | ||||||||||||||
| Blazer & Jimmy | V | 5.7L (LO5) | K | TBI | Magnetic | ||||||||||||
| 6.2L (LH6)(3) | C | Diesel | N/A | ||||||||||||||
| 6.2L (LL4)(4) | J | Diesel | N/A | ||||||||||||||
| Lumina APV, Silhouette, Trans Sport | U | 3.1L (LG6) | D | TBI | Magnetic | ||||||||||||
| Parcel Van (P20/35) | P | 4.3L (LB4) | Z | TBI | Magnetic | ||||||||||||
| 5.7L (LO5) | K | TBI | Magnetic | ||||||||||||||
| 6.2L (LH6)(3) | J | Diesel | N/A | ||||||||||||||
| 6.2L (LL4)(4) | J | Diesel | N/A | ||||||||||||||
| 7.4L (L19) | N | TBI | Magnetic | ||||||||||||||
| Pickup (C/K 10/35), Sierra | C, K | 4.3L (LB4) | Z | TBI | Magnetic | ||||||||||||
| 5.0L (LO3) | H | TBI | Magnetic | ||||||||||||||
| 5.7L (LO5) | K | TBI | Magnetic | ||||||||||||||
| 6.2L (LH6)(3) | C | Diesel | N/A | ||||||||||||||
| 6.2L (LL4)(4) | J | Diesel | N/A | ||||||||||||||
| 7.4L (L19) | N | TBI | Magnetic | ||||||||||||||
| R/V 35 | R, V | 5.7L (LO5) | K | TBI | Magnetic | ||||||||||||
| 6.2L (LH6)(3) | J | Diesel | N/A | ||||||||||||||
| 6.2L (LL4)(4) | J | Diesel | N/A | ||||||||||||||
| 7.4L (L19) | N | TBI | Magnetic | ||||||||||||||
| Suburban, R/V 15/25 | R, V | 5.7L (LO5) | K | TBI | Magnetic | ||||||||||||
| 6.2L (LH6)(3) | J | Diesel | N/A | ||||||||||||||
| 6.2L (LL4)(4) | J | Diesel | N/A | ||||||||||||||
| 7.4L (L19) | N | TBI | Magnetic | ||||||||||||||
| S/T Series Blazer, Bravada, Jimmy, Pickup, Sonoma, Syclone | S, T | 2.5L (L38)(2) | A | TBI | Magnetic | ||||||||||||
| 2.5L (LN8)(5) | E | TBI | Magnetic | ||||||||||||||
| 2.8L (LL2) | R | TBI | Magnetic | ||||||||||||||
| 4.3L (LB4) | Z | (6)TBI | Magnetic | ||||||||||||||
| Van (G10/35), Rally Van, Vandura | G | 4.3L (LB4) | Z | TBI | Magnetic | ||||||||||||
| 5.7L (LO5) | K | TBI | Magnetic | ||||||||||||||
| 6.2L (LH6)(3) | C | Diesel | N/A | ||||||||||||||
| 6.2L (LL4)(4) | J | Diesel | N/A | ||||||||||||||
| 7.4L (L19) | N | TBI | Magnetic | ||||||||||||||
| ]5.7L (L98) | 8 | PFI | Magnetic | ||||||||||||||
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.